BELO HORIZONTE, Brazil (AP) -- Argentina has returned to a three-man attack consisting of Lionel Messi, Gonzalo Higuain and Sergio Aguero in its World Cup match against Iran on Saturday.

Coach Alejandro Sabella started with a more defensive lineup with only two strikers in Argentina's 2-1 win over Bosnia-Herzegovina in the Group F opener.

He then changed to a 4-3-3 formation in the second half -- a system favored by Messi -- and he's continuing with that lineup at the Mineirao Stadium in Belo Horizonte.

Argentina will play with Fernando Gago, Javier Mascherano and Angel Di Maria in the midfield and a four-man defense, meaning Hugo Campagnaro, who started against Bosnia, has been dropped.

Iran coach Carlos Queiroz made one change to the team he fielded in the 0-0 draw against Nigeria, bringing in forward Masoud Shojaei for midfielder Khosro Heydari in what could be a more attacking formation.